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22122163 = 73160309
BaseRepresentation
bin101010001100…
…0111010110011
31112121220220101
41110120322303
521130402123
62110053231
7356015050
oct124307263
945556811
1022122163
111153a788
1274aa217
13477734b
142d1c027
151e1eaad
hex1518eb3

22122163 has 4 divisors (see below), whose sum is σ = 25282480. Its totient is φ = 18961848.

The previous prime is 22122103. The next prime is 22122169. The reversal of 22122163 is 36122122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36122122 = 218061061.

It is a cyclic number.

It is not a de Polignac number, because 22122163 - 217 = 21991091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22122163.

It is not an unprimeable number, because it can be changed into a prime (22122169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580148 + ... + 1580161.

It is an arithmetic number, because the mean of its divisors is an integer number (6320620).

Almost surely, 222122163 is an apocalyptic number.

22122163 is a deficient number, since it is larger than the sum of its proper divisors (3160317).

22122163 is an equidigital number, since it uses as much as digits as its factorization.

22122163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160316.

The product of its digits is 288, while the sum is 19.

The square root of 22122163 is about 4703.4203511912. The cubic root of 22122163 is about 280.7216207718.

Adding to 22122163 its reverse (36122122), we get a palindrome (58244285).

The spelling of 22122163 in words is "twenty-two million, one hundred twenty-two thousand, one hundred sixty-three".

Divisors: 1 7 3160309 22122163